论文部分内容阅读
对连续抽运情况下光纤激光器的弛豫振荡特性进行了理论研究,根据速率方程理论,采用数值仿真方法,对不同抽运功率、腔损、谐振腔有源部分长度、谐振腔总长度等情况下的激光器输出的弛豫振荡进行了分析,仿真结果与实际测量值基本符合。采用光电负反馈的方法,抑制了弛豫振荡峰值约25dB,得到了优于-100dB的较为平坦的激光器噪声谱级,优异的低噪声特性使得该激光器在光学相干检测,光纤通信等领域具有很高的实用价值。
The relaxation oscillation characteristics of fiber laser under continuous pumping are studied theoretically. According to the rate equation theory, numerical simulation is used to analyze the different pumping power, cavity loss, the length of the active part of the resonator, the total length of the resonator Under the laser output relaxation oscillation was analyzed, the simulation results and the actual measured values are basically in line. The photoelectric negative feedback method suppresses the peak value of relaxation oscillation by about 25 dB and obtains a relatively flat laser noise spectrum better than -100 dB. The excellent low noise characteristics make the laser very useful in the fields of optical coherence detection and optical fiber communication High practical value.